{g1, g2} is a generating set of G with ord(g2) = n2, x1, . . . , xn2+(1−s)n1 ∈ [0, n1 − 1], x1 + . . . + xn2+(1−s)n1 = n1 − 1, s ∈ [1, n2/n1], and either s = 1 or n1g1 = n2g2. Thus Property B is multiplicative, and if G = Cn1 ⊕Cn2 with 1 < n1 |n2 is a group of rank two, and for every prime divisor p of n1 the group Cp ⊕Cp has Property B, then the minimal zero-sum sequences of maximal length ove...

N-Methyl-D-aspartate (NMDA) receptors are modulated by extracellular spermine and protons and are blocked in a voltage-dependent manner by spermine and polyamine derivatives such as N1-dansyl-spermine (N1-DnsSpm). The effects of mutations in the first and third transmembrane domains (M1 and M3) and the pore-forming loop (M2) of NMDA receptor subunits were studied. Surprisingly, some mutations i...

We investigated butanol production from crystalline cellulose by cocultured cellulolytic Clostridium thermocellum and the butanol-producing strain, Clostridium saccharoperbutylacetonicum (strain N1-4). Butanol was produced from Avicel cellulose after it was incubated with C. thermocellum for at least 24 h at 60°C before the addition of strain N1-4. Butanol produced by strain N1-4 on 4% Avicel c...

Mismatch negativity (MMN) is an event-related brain potential that appears when an auditory regularity is violated. Two main hypotheses have been proposed to explain it: the adaptation hypothesis and the memory-based hypothesis. Critically, they differ in whether the MMN can be distinguished from the N1. In this study, we assessed the differential contribution of the N1 and the MMN using indepe...

I congratulate Dooms et al 1 on their important study recently published in CHEST (January 2015) that investigated the role of endosonography for mediastinal nodal staging in patients with operable and resectable lung cancer and suspicion of N1 involvement based on CT and PET imaging. To my surprise, the sensitivity of endosonography to detect N2 disease was only 38%, with a negative predictive...

evaluate the impact and clinical value of anatomical-functional image fusion in the study interpretation and clinical management of patients with neuroendocrine tumours (NET) using somatostatin receptor scintigraphy (SRS) and combined transmission and emission tomography – single-photon emission tomography/CT (SPET/CT). Material and methods: Twelve patients (8 female and 4 male; age range 32-74...

Sensitivity to print is characterized by a left occipito-temporal negativity to words in the event-related potential N1. This sensitivity is modulated by reading skills and may thus represent a neural marker of reading competence. Here we studied the development of the N1 in regular and poor readers from preschool age to school age to test whether the amplitude of the N1 predicts children's rea...

INTRODUCTION Serotonin seems to play a central role in tinnitus. The intensity dependence of auditory evoked potential (IDAP) is considered an index of central serotonergic activity in the auditory cortex. The higher the steepness of the N1/P2 component amplitude-stimulus function slope (N1/P2 ASF slope as calculated by IDAP), the lower the central serotonergic activity. Similarly, the N1 ampli...

For fixed ` ≥ 2, fixed positive integers m1 > m2 with gcd(m1,m2) = 1 and n1 > n2 > · · · > n` with gcd(n1, . . . , n`) = 1, and fixed rationals a1, a2, . . . , a`+1, b1, b2 which are all nonzero except for possibly a`+1, we show the finiteness of integral solutions x, y of the equation a1x n1 + · · ·+ a`x` + a`+1 = b1y + b2y , when n1 ≥ 3, m1 ≥ 2`(` − 1), and (n1, n2) 6= (m1,m2). In relation to...

We adopt the following convention: i, j, m, n denote natural numbers, K denotes a field, and a denotes an element of K. Next we state several propositions: (1) Let A, B be matrices over K, n1 be an element of Nn, and m1 be an element of Nm. If rng n1 × rngm1 ⊆ the indices of A, then Segm(A + B,n1,m1) = Segm(A,n1,m1) + Segm(B,n1,m1). (2) For every without zero finite subset P of N such that P ⊆ ...